(55015) Audemars Piguet 26730TI.OO.1320TI.02 Royal Oak Flying Tourbillon 50th Anniversary, 26730TIOO1320TI02, titanium case on a titanium bracelet, automatic Audemars Piguet caliber 2950 flying tourbillon movement with commemorative "50th Anniversary" rotor, sandblasted blue dial with applied luminous white gold baton hour markers, luminous hands and indexes, display back, sapphire crystal, water resistant to 50 meters, diameter: 4...